Foreach when key is not a number

In my project i push a array into a table in firebase realtime database. Firebase generate a token and not a numeric id for each array:

{
    "-N2mToYDj-i8ToErmaUj": {
        "anzahl": 2,
        "groesse": 0.5,
        "name": "getraenk1",
        "preis": 5.5
    },
    "-N2mX3RPnDXxWMHMJScy": {
        "anzahl": 1,
        "groesse": "0.25",
        "name": "getraenk2",
        "preis": 2.2
    },
    "-N2mXBT8c7EKlIgyrU72": {
        "anzahl": 1,
        "groesse": "0.5",
        "name": "getraenk3",
        "preis": 3.4
    },
    "-N2mXZD1BoCslj81Lcya": {
        "anzahl": 1,
        "groesse": "1",
        "name": "getraenk4",
        "preis": 5.2
    "-N2m_g8GutpAFqsN4WsP": {
        "anzahl": 1,
        "groesse": "0.33",
        "name": "getraenk5",
        "preis": 3.2
    },
}

How can i work with each object when the key value is not numeric. ForEach() does not work for me.

>Solution :

Lets say your data stored in test object.
you can use Object function in javascript to work with any object. For accessing all key you can try this:

Object.keys(test).map(key => { // key in here can be for example -N2mToYDj-i8ToErmaUj
    const data = test[key] // this is the full object that each key points to
/* 
   {
        "anzahl": 2,
        "groesse": 0.5,
        "name": "getraenk1",
        "preis": 5.5
    }
*/
})